655499 has 4 divisors (see below), whose sum is σ = 705936. Its totient is φ = 605064.

The previous prime is 655489. The next prime is 655507. The reversal of 655499 is 994556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 655499 - 2⁸ = 655243 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25199 + ... + 25224.

It is an arithmetic number, because the mean of its divisors is an integer number (176484).

2⁶⁵⁵⁴⁹⁹ is an apocalyptic number.

655499 is a deficient number, since it is larger than the sum of its proper divisors (50437).

655499 is a wasteful number, since it uses less digits than its factorization.

655499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50436.

The product of its digits is 48600, while the sum is 38.

The square root of 655499 is about 809.6289273488. The cubic root of 655499 is about 86.8675043133.

It can be divided in two parts, 6554 and 99, that multiplied together give a palindrome (648846).

The spelling of 655499 in words is "six hundred fifty-five thousand, four hundred ninety-nine".